Optometrist here (who has worked in surgical centers and now works in refractive surgery at a major university).
With PRK, vision usually gets worse before it gets better. This is completely normal and no reason to panic! This happens because the cornea begins to regenerate the epithelial tissue and it grows back patchy and uneven until it smooths over. So the vision was alright initially because the contact lens over her cornea was covering a bare (but smooth) cornea missing the epithelium. Now that tissue is beginning to heal and regenerate, leading to worse vision. Once the epithelial tissue has had time to completely regenerate, the vision will improve. It will get better, I promise! PRK is a process. It takes time for the vision to come in (much different than LASIK). Usually vision is the worst 3-4 days after surgery.
If you schedule an appointment tomorrow, that is fine, but the doc will likely just tell you it needs time. That is why the next follow-up is usually 5-7 days after the surgery date. By then the epithelial tissue has had time to (mostly) grow back and that contact lens is ready to be removed.